Fountain tooth-brush.



Patented J'une 2, 1903.

PATENT OFFICE.

HENRY O. MOKINLEY AND ALBERT DIEGEL, OF DETROIT, MICHIGAN.

FOUNTAIN TOOTH-BRUSH.

SPECIFICATION forming part of Letters Patent No. 730,040, dated June 2, 1903.

Application filed March 29. 1902. Serial No. 100,533. (No model.)

To all whom. it ntay concern:

Be it known that we, HENRY C. MCKINLEY and ALBERT DIEGEL, citizens of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Fountain Tooth-Brushes; and we declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to fountain tooth brushes, and has for its object an improved brush provided with a receptacle to contain a liquid dentifrice and arranged to feed the dentifrice into the bristles of the brush.

In the drawings, Figure 1 shows the brush and case in perspective. Fig. 2 is a perspec tive of the end of the brush-handle. Fig 3 is a longitudinal section through the part which comprises the handle of the brush. and the fluid-receptacle. Fig. 4 is a perspective of the detached brush-head.

The complete brush comprises a hollow or chambered handle 0, which is intended to be used as the receptacle for a supply of liquid dentifrice, and an extension A, projecting therefrom,which is also chambered and which is intended to be used to contain a supply for immediate use. lVith these two parts is combined a brush-head that is removable and which consists of a back (hereinafter more particularly described) and the bristles attached thereto. A cover-case 18, arranged to be used at one time as a cover to the brushhead and at another time as an extension or elongation for the handle part, completes the structure.

The extension part of the handle which is immediately attached to andbehindthebrushhead (indicated at A) is a narrow chamber between the casing-wall a and a front wall Z), which forms the face against which the back of the brush-head B rests. The brush-head is provided with flaring sides and is broader 011 its rear face than it is on the face from which the bristles project. It engages between side flanges 2 and 3, that project forward from the plate 1), and the inner end 4 of the brush-head engages against a flange 5, that forms the rear wall of the seat for the brush-head. The engagement between the sides of the brush-head and the flanges is close, and the face 6 of thebrush-head is brought into close contact with the face I) of the seat, making a practically liquid tight joint between the two faces. The face b of the seat is provided with a long narrow slot-like opening 7, and through the brush-head is bored a small round hole 8, that registers over a part of a slot-like opening 7.

The chamber between the case and the face I) is small and capable of containing only a few drops of fluid. The handle 0 is hollow and is provided with a cup-like case 9, that fits closely within the walls of the main handle and making therewith a liquid-tight joint at the point of junction 10. Between the chamber C and the chamber D, at the back of the brush-head, there is a constricted opening 11, through which liquid can flow or be forced, but thfough which the liquid does not run, because of the atmospheric resistance, unless air is admitted to the chamber 0 or artificial force is used to force the water through said opening. The case of-the chamber 0 is provided with a band, belt, or collar 12, which forms the stop for an outer case 13, made to engage over the receptacle part of the handle from either direction, slipping onto the receptacle part of the handle from the end lat or from the brush end, as may be desired. In the one case it is used to make the handle of the brush longer and in the other case it is used to close in and confine the head end of the brush and adapt the article to be put into the pocket.

I11 the use of the above-described device the brush is shaken or otherwise manipulated to fill the chamber D, from which chamber the fluid runs into thebrush gradually, asrequired in use.

WVhat we claim is- A fountain tooth-brush comprising a'brush, a hollow handle, a flat hollow extension car- 'ried by the handle, said extension having a wall a and a face I), the latter constituting a brush seat or base, means for securing the In testimony whereof we sign this specification in the presence of two witnesses.

HENRY O. MOKINLEY. ALBERT DIEGEL.

brush to the extension and against the face I), and a restricted communicating passage between the hollow handle and its extension, the brush being provided with an opening in 5 its back leading to its bristles and the face I) having an exit-passage thereabove; substantially as described.

\Vitnesses:

CHARLES F. BURTON, MAY E. KoTT. 

